Select the first five terms of the sequence. (Assume that n begins with 1.)
a. 
b. 
c. 
d. 
d.
Mathematics
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Convert the given angle measure into degrees and decimal fractions of a degree.66°18'
A. 66.36° B. 66.26° C. 66.30° D. 66.31°
Mathematics
Use the quadratic formula to solve the equation.x2 + 12x + 21 = 0
A. {-6 - 
, -6 + 
}
B. {-12 + 
}
C. {6 + 
}
D. {6 - 
, 6 + 
}
Mathematics
The sales of a product S (in thousands of dollars) are given by 
, where x is the advertising expenditure (in thousands of dollars). Find the rate of change of sales with respect to advertising expenditure. Use the second derivative to find how this rate is changing at 
varid="variable_id_field" variablename="impvar_af3043c08a7441e2858a7f822" />. Round your answer to two decimal places. ? A. 0.89 B. -0.03 C. 0.00 D. -0.89 E. -0.02
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics